# Author: wangjk
# 2025年10月28日11时27分
# xxx@qq.com

# 餐厅固定提供五种食物的菜单
foods = ('beef', 'chicken', 'fish', 'pork', 'cheese')
print("餐厅固定的菜单为：")
for food in foods:
    print(food, end=' ')

# 验证一下元组元素不可修改
# foods[0] = 'xxx'

print()

# 餐厅菜单调整
print("调整后的菜单为：")
foods = ('carrot', 'potato', 'fish', 'pork', 'cheese')
for food in foods:
    print(food, end=' ')
